diff --git a/extension/background.js b/extension/background.js
index bbeeb2c..b0ce713 100644
--- a/extension/background.js
+++ b/extension/background.js
@@ -371,7 +371,7 @@ async function onMessage(req) {
   /* console.timeEnd(req.op + ':' + req.path);*/
 
   log('resp', response);
-  /* ws.send(JSON.stringify(response));*/
+  port.postMessage(response);
 };
 
 function tryConnect() {
diff --git a/fs/tabfs.c b/fs/tabfs.c
index 424b330..dcd55a8 100644
--- a/fs/tabfs.c
+++ b/fs/tabfs.c
@@ -230,6 +230,12 @@ static struct fuse_operations tabfs_filesystem_operations = {
 int
 main(int argc, char **argv)
 {
+    /* system("killall -9 tabfs"); */
+    char killcmd[1000];
+    sprintf(killcmd, "pgrep tabfs | grep -v %d | xargs kill -9", getpid());
+    system(killcmd);
+    system("diskutil umount force mnt > /dev/null");
+
     FILE* log = fopen("log.txt", "w");
     for (int i = 0; i < argc; i++) {
         fprintf(log, "arg%d: [%s]\n", i, argv[i]); fflush(log);